I got news for you sparkie, there are plenty of netbooks that run linux, heck ubuntu even offers a netbook remix of its OS. I even have a dell mini running OSX, so does that mean my dell mini 10v is no longer a netbook because its running OSX?
The MBA is closer to a netbook then to a laptop.
So why would core users want a hacked up Mac OSX? and violate 's user agreements? - I don't want a half baked frankenstein system that tries to be a mac and ruin the mac experience. Nor do I want to look at and touch an ugly PC laptop. I'd rather pay 's asking price at a premium b/c I'll get a premium product and 100% working system. So that's the key differentiators, not to mention the superior components, cutting edge industrial design and idea behind the MBA.